/*
 * The contents of this web application are subject to the Mozilla Public License Version 
 * 1.1 (the "License"); you may not use this web application except in compliance with 
 * the License. You may obtain a copy of the License at http://www.mozilla.org/MPL/.
 * 
 * Software distributed under the License is distributed on an "AS IS" basis, 
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 
 * for the specific language governing rights and limitations under the License.
 * 
 * The Original Code is owned by and the Initial Developer of the Original Code is 
 * Composite A/S (Danish business reg.no. 21744409). All Rights Reserved
 * 
 * Section 11 of the License is EXPRESSLY amended to include a provision stating 
 * that any dispute, including but not limited to disputes related to the enforcement 
 * of the License, to which Composite A/S as owner of the Original Code, as Initial 
 * Developer or in any other role, becomes a part to shall be governed by Danish law 
 * and be initiated before the Copenhagen City Court ("K�benhavns Byret")            
 */

/*! Copyright (c) 2011 Brandon Aaron (http://brandonaaron.net)
* Licensed under the MIT License (LICENSE.txt).
* Thanks to: http://adomas.org/javascript-mouse-wheel/ for some pointers.
* Thanks to: Mathias Bank(http://www.mathias-bank.de) for a scope bug fix.
* Thanks to: Seamus Leahy for adding deltaX and deltaY
* Version: 3.0.6
* Requires: 1.2.2+
*/
(function ($) {
	var types = ['DOMMouseScroll', 'mousewheel'];
	if ($.event.fixHooks) {
		for (var i = types.length; i; ) {
			$.event.fixHooks[types[--i]] = $.event.mouseHooks;
		}
	}
	$.event.special.mousewheel = {
		setup: function () {
			if (this.addEventListener) {
				for (var i = types.length; i; ) {
					this.addEventListener(types[--i], handler, false);
				}
			} else {
				this.onmousewheel = handler;
			}
		},
			teardown: function () {
			if (this.removeEventListener) {
				for (var i = types.length; i; ) {
					this.removeEventListener(types[--i], handler, false);
				}
			} else {
				this.onmousewheel = null;
			}
		}
	};
	$.fn.extend({
		mousewheel: function (fn) {
			return fn ? this.bind("mousewheel", fn) : this.trigger("mousewheel");
		},
		unmousewheel: function (fn) {
			return this.unbind("mousewheel", fn);
		}
	});
	function handler(event) {
		var orgEvent = event || window.event, args = [].slice.call(arguments, 1), delta = 0, returnValue = true, deltaX = 0, deltaY = 0;
		event = $.event.fix(orgEvent);
		event.type = "mousewheel";
		// Old school scrollwheel delta
		if (orgEvent.wheelDelta) { delta = orgEvent.wheelDelta / 120; }
		if (orgEvent.detail) { delta = -orgEvent.detail / 3; }
		// New school multidimensional scroll (touchpads) deltas
		deltaY = delta;
		// Gecko
		if (orgEvent.axis !== undefined && orgEvent.axis === orgEvent.HORIZONTAL_AXIS) {
			deltaY = 0;
			deltaX = -1 * delta;
		}
		// Webkit
		if (orgEvent.wheelDeltaY !== undefined) { deltaY = orgEvent.wheelDeltaY / 120; }
		if (orgEvent.wheelDeltaX !== undefined) { deltaX = -1 * orgEvent.wheelDeltaX / 120; }
		// Add event and delta to the front of the arguments
		args.unshift(event, delta, deltaX, deltaY);
		return ($.event.dispatch || $.event.handle).apply(this, args);
	}
})(jQuery);
